Article 57

1.          All persons are required to provide a supervisor with all cooperation that he may reasonably require in the exercise of his powers, within the reasonable term set by the supervisor.

2.          Persons who are required to protect confidentiality on official, professional or statutory grounds may refuse cooperation, to the extent that this arises from their confidentiality obligation.

3.          A confidentiality obligation may not be invoked to the extent that information or cooperation is required in connection with a personal involvement in the processing of personal data.